Improvement in car-couplings



s. KAMER.. CVAR-COUPLING.

Patented Sept- 12, 1876.

N..1azf,114.

IMI

wnussszs':

monusvs.

N.PETLRS. PHOTO-LITHOGHAPHER. WASHINGxON, D C.

UNITED STATES PATENT QEEIcE.

SAMUEL HAMER, OF SALT LAKE CITY, UTAH TERRITORY.

IMPROVEMENT iN cAR-couPLlNGs.

Specication forming part of Letters Patent No. 182, [14, `datedSeptember 12, 1876',5 application tiled July l, 1876.

lowing is a specification:

In the accompanying drawing,Figure l represents a vertical longitudinalsection of my improved car-coupling. Fig. 2 is a top view, Fig. 3 an endview, and Fig. 4 a detail top view, of coupling-hook as pivoted to draw?bar. t

Similar letters of reference indicate correspondin g parts.

My invention relates to an improved automatic car-coupling for passengerand freight cars, which may be coupled with cars having the commonpin-and-link coupling, and which combines a buffer arrangement with thedrawhead and coupling.

c The invention consists of a spring-acte drawhead, with interiorseparately-movable draw-bar, to which a coupling spring-hook is pivoted.The draw-head has a top shoulder or projection that comes in contactwith an auxiliary spring-bolt, and acts as butl'erhead thereby.

In the drawing, A represents a draw-bar of the usual construction, whichis guided in longitudinal direction on the bottom iframel of the car,and placed in connection with a strong spiral spring; B, byaseparatelysliding drawbar, C, that extends through the rear end of thedraw-head. The draw-bar C acts by a cross-pin or fastening, A, andcross-plate b on the spring B, when pulled in forward direction, being'stopped by a lateral guard-piece, d, in opposite direction. Thedraw-head A is, by its connection with the draw-bar G,readily drawn inforward direction; but also carried back independently of the draw-bar,which retains its position, when, by the concussion of the draw-heads,in coupling,the rear end of the draw-head is pushed back, acting by alateral plate, b', onfthe spiral spring B. The lateral plates b b areguided in side recesses of the car-frame, and serve to transmit themotion of both draw-head and draw-bar to the spring. The coupling-hook Dis pivoted to the front or soeketend of draw-bar C, so as to swing inhorizontal direction Within, the draw-head being -pressed sidewise by abandspring, e, to interlock with the coupling-hook of the approachingcar when the same enters the draw-head. The draw-head A is provided withtop and bottom holes to couple with the common link and pin, the linkbeing inserted above or below the coupling-hook, and the pin thendropped in the usual manner.v

The coupling-hook D is uncoupled by means of a hand-wheel, ratchet,pawl, and rope connection with the hook, as shown in Figs. l and 2, orby means ot'4 rope or chain and bellcrank lever, as shown in Fig. 3,either from the platform, top, or side ot' the car, as desired.

The top part of the draw-head Ais provided with a raised shoulder, f,that is in contact with aslidin g and guided spring-bolt, E, whichserves to impart greater power of resistance to the draw-head, so thatthe same acts in the nature of a buffer by means of the auxiliaryspring-bolt.

The cars, with my coupling,may be coupled or uncoupled on any curve,andproduce the steady motion, as there will be no jerking of the hooks, asthe buffer-springs are tightly compressed and hold the hooks tightlytogethcr, reducing thereby the wear to a minimum.

The draw-head may be made either with closed or open sides, as desired,it serving mainly as a buffer, and for coupling with the commoncoupling. i

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is- Y The draw-bar of a car-coupling, providedwith shoulder f and spring-bolt E, arranged substantially as and for thepurpose specified.

SAMUEL HAMER.

Witnesses:

WM. J. PLAYER, GEORGE W. WRIGHT.

